Flush-valve for water-closets.



D. W. McNEIL.

FLUSH VALVE FOR WATER CLOSETS.

APPLICATION FILED JUNE 4.1915.

2 99 E J u u a m w n. w; McNEIL.

FLUSH.VALVE FOR WATER CLOSETS.

APPLICATION FILED JUNE 4.191s.

1,225,987., Patented May15,1917.

Y 2 SHEETS-SHEET 2.

DANIEL W. MONEIL, OF CINCINNATI, OHIO, ASSIGNOR TO THE OF CINCINNATI,OHIO, A CORPORATION JOHN DOUGLAS COMPANY, OF OHIO.

FLUSH-VALVE FOR WATER-CLOSETS.

Specification of Letters Patent.

Patented May 15, 1917.

Application filed June 1, 1915. Serial No. 32,083.

To all whom it may concern Be it known that I, DANIEL of America,

Y and resident of Cincinnati, county of Hamilton, State of Ohio, haveinvented certain new and useful Improvements in Flush- Valves forWater-Closets, of which the following is a specification.

This invention relates to improvements in flush valves and particularlyto flush valves of the type adapted to beoperated by a motion of thecloset seat with which they are operatively associated.

An object of my invention is to produce a valve of more compactconstruction than valves of the same type heretofore employed.

An object is to produce an improved flush valve in which a constructionis provided which eliminates the necessity of extreme accuracy ofconstruction.

A further object is to produce an improved flush valve in which the mainvalve may be readily removed for purposes of repair, withoutdismantlingthe entire valve.

These and other objects are attained in the valve described in thefollowing specification and illustrated in the accompanying drawings, inwhich,-

Figure 1 is a longitudinal sectional view of a valve embodying myinvention.

Fig. 2 is a sectional view taken on the line 2-2 of Fig.1.

Fig. 3 is" an elevation upon a somewhat reduced scale, of a valveembodying my invention, with certain portions broken away to show theoperating portions of the valve in different positions from those shownin Fig. 1.

Fig. 4; is a sectional view showing the position occupied by my improvedvalve, when properly mounted on a closet bowl.

In valves of the type adapted to be automatically operated, and in whichthe push rod is separately operated to return it to its normal position,the push rod and operating means are located outside the valve casing.

This results in a valve construction which necessitates an elongatedstructure occupying a great amount of space, and thus defeats one of theprincipal objects for which valves of this type are provided.

It is to overcome this and other objections to valve constructions ofthis type that I have devised the improved valve herein set forth. Thevalve embodying my invention consists of a casing 5 having an inlet port6 and a series of discharge ports 7 spaced apart around the upperportion of the valve casing. On the interior of the casing adjacent tothe inlet 6 is a bridge 8 having a depending annular flange 9surrounding a port in the bridge and at its lower end adapted to form aseat for the packing 10 of the main valve 11 reciprocally mounted in thelower end of the casing. The lower portion of the valve 11 is providedwith a cup leather 12 which is secured in position by a lock nut 13mounted on the screw threaded lower end 14 of the valve. This screwthreaded end la is provided with a recess adapted to receive the upperend of the coil spring 15, which rests at its lower end upon a cap 16secured to and adapted to close the lower end of the valve casing 5. Apacking 17 is provided on the cap 16 for the purpose of closing thecasing against leakage at its lower end. At the upper end of the valve11 an upwardly extending annular flange 18 is provided to enter andreciprocate within the downwardly extending annular flange 9 formed onthe bridge 8. The annular flange 18' is however, provided with a seriesof notches which leave a series of circumferentially alined projections19 for the purpose of guiding the valve 11 in its motion. The'notchesare not made the entire depth of the flange 18 so that the portion 20 isleft to positively close the opening surrounded by the flange 9 when themain valve 11 is moved to substantially its closed position.

At the top of the casing a screw threaded plug 21 having a downwardlyextending hollow cylindrical extension 22 is provided, the extension 22having an aperture at its lower end adapted to permit-the push rod 23 topass therethrough. The lower end of the push rod 23 is screw threadedand is provided with screw threaded collars 24: adapted to retain apacking 25 between them for the purpose of closing the port surroundedby the flange 9, when the push rod is forced downwardly into engagementwith the main valve, to open the main valve. The packing 25 and theflanges 24. form an auxiliary valve 86, the purpose of which is toprevent the water from passing from the inlet (3 upwardly through thecasing and out through the discharge passages 7 when the main valve isopened by the push rod 23. At the upper end of the push rod a knob 26 issecured, the knob being of a diameter adapted to reciprocate within thecylindrical portion 22 of the plug 21 when the auxiliary valve is movedwithin the flange 9. For the purpose of returning the push rod and theauxiliary valve to their normal positions and also for the purpose ofaffording a water tight joint at the point where the push rod 23 passesthrough the casing 22, a spring 27 is provided between the under face ofthe knob 26 and a collar 28 mounted on the push rod, together withpacking material 29 for the purpose of forcing the packing into contactwith the sin-lace of the valve stem to prevent water entering thecylindrical extension 22 and to return the auxiliary valve to its normalposition as shown in Fig. 1. At the top of the casing a cap 30 isprovided, which in cooperation with the outwardly extending flange 31formed beneath the discharge ports 7 is provided for securing the valvein position on the closet bowl as shown in Fig. at. In addition to thecap 30, an ornamental cap 32 is provided for closing the recess in whichthe valve is located.

The spring 15 which closes the main valve 11 is of such a tension thatit will close the valve when the pressure on top of the valve and thepressure on the under sideof the valve are equal. If however, thepressure on the under side of the valve is reduced the valve will remainopen be cause of the overbalancing pressure of water on its uppersurface, and thus permit the water to pass through the port surroundedby the flange 9 and upwardly through the casing 5 and out of thedischarge passages 7. For'the purpose there fore of permitting the valve11 to close, a by-passage 33 is formed in the side of the valve casing,the upper end of the passage being constricted by a needle valve 34:which .is in communication with the inlet passage 6, while the lower endof the by-passage communicates with the chamber beneath the valve 11 s0that the water may pass through the passage 33 to create an equalpressure on the top as well as the under side of the main valve. Underthese conditions the valve will close under the pressure of the spring15.

In use:

After the valve has been properly mounted, the knob 26 will be retainedagainst the under side of the closet seat 35 and will normally hold theseat in a slightly raised position as shown in Fig. 4:, under the pressure of the spring 27. lhis position of the knob under the pressure ofthe spring 27 also holds the auxiliary valve 36 above the portsurrounded by the flange 9 and away from the main valve 11. In thisposition the main valve will be retained in its closed position, therebypreventing the passage of water through the port surrounded by theflange 9 and upwardly through the casing 5 and out of the dischargeports 7.

When the seat is moved downwardly, the knob 26 will be pressed downunder the influence of the spring 27 and will carry the auxiliary valve36 through its connection with the rod 23, into the port surrounded by.the flange9. After this port has: been closed, the endof the .valve stemwill be brought into engagement with the top surface 37 of the mainvalve 11., and will force the valve downwardly, the water beneath thevalve being forced back through the bypass 33 and also around thepacking 12 of the main valve, thereby permitting the water to pass from.the lower end of the casing to a point above the valve 11 where it willbe discharged with the water entering the port surrounded by the flange9, upwardly through the valve casing and out of the discharge ports 7.Passage of the water beyond the auxiliary valve 36 isv preventedhowever, since the auxiliary valve plugsthe port in the flange 9 andprevents it from passing upwardly through the casing. The

main valve and the auxiliary valve will be retained in this. positionand the water will not be permitted to be discharged until the seat isreleased and the valve stem andauxiliary valve is raised by the spring27 to leave the port inthe flange 9 and permit the water from the inletport to pass therethrough. With the auxiliary valve lifted the waterWlll pass upwardly through the casing and out of the discharge ports 7The discharge of water through the valve will continue until the mainvalve 11 is seated against the lower end of the flange 9. This seatingoperation. of the valve 11 is caused by gradual seepage of the waterwhich passes the needle 3e and through the by-pass 33 to the chamberbeneath the valve 11. As the water is permitted to pass to the underside of the valve 11 it will become gradually raisedunder' the influenceof the spring 15 untit the portion 20 of the flange 18 has been broughtto. close the opening in the flange 9-. In this position all of thewater is substantially out off and prevented from discharging throughthe valve, but to positively sealv the port the valve is: graduallyraised until the packing 10 is brought into engagement with the lowerend of the flange-9;, lVith the valve in this position the pressure ofits upper face is materially reduced over the pressure on its under facesince the area covered by the flange 9 is taken from the total topsurface area of the main valve thereby creating a much greater pressureon the under face in proportion to that 110w existing on the upper face.As soon as the portion 20 of the flange 18 has been brought to registerwith the flange 9 as above described it will be seen that the spring isaided materially in not only moving the valve toward but in alsoretaining the valve in its closed position. In fact the spring 15 may besaid to have been provided principally for the purpose of returning thevalve to the position in which the flange 20 registers with the flange9, so that the pressure on the upper face of the valve could be reducedin order to permit of the pressure on the under face of the valve to actsolely in retaining the valve in its closed position. Another feature towhich I desire to call attention is that because of the portion 20 ofthe flange 18, the main valve 11 will have to be moved but a shortdistance against the pressure existing on the under fa ce thereof, tothe point Where the, portion 20 will be removed from the flange 9, atwhich point the pressure on its upper face will be completely restoredto equal the pressure on its under face, so that the valve will onlyhave to be moved against the pressure of the spring 15, which pressureis negligible.

Copies of this patent may be obtained for five cents each, by addressingWashington, D. G.

Having thus described my invention, what I claim is:

In a flush valve, the combination of a casingclosed at its lower end andhaving, upon its interior intermediate its ends, an annular flange, anoutlet port near the upper end of the casing and an inlet port below theflange, a cap for the casing having a hollow cylindrical extensionprojecting into the casing, a push rod extending through the cylindricalextension, an auxiliary valve upon the lower end of the push rod andadapted to fit within the annular flange, a spring Within thecylindrical extension and adapted to hold the push rod in a positionwith the auxiliary valve above the annular flange, a main valve normallycontacting with the lower end of the annular flange, and means forpermitting seepage of water between the main valve and the lower end ofthe casing.

In testimony whereof, I have hereunto subscribed my name this 2nd day ofJune, 1915.

DANIEL W. MONEIL. Witnesses:

WALTER F. MURRAY, W. THORNTON BOGERT.

the Commissioner of Patents,

